Home / 13,508.12-20,262.18-3,647.39

Finding the Fourth Proportional to 13,508.12, 20,262.18 and 3,647.39

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Solution

The fourth proportional to 13,508.12, 20,262.18 and 3,647.39 is: 5,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.12 : 20,262.18 = 3,647.39 : x
  2. Step 2: Convert to fraction form
    13,508.12/20,262.18 = 3,647.39/x
  3. Step 3: Cross multiply
    13,508.12x = 20,262.18 × 3,647.39
  4. Step 4: Simplify right side
    13,508.12x = 73,904,072.71
  5. Step 5: Solve for x
    x = 73,904,072.71/13,508.12
  6. Step 6: Final answer
    x = 5,471.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.